PHP7安装redis扩展
https://www.jb51.net/article/171051.htm
https://blog.csdn.net/qq_41952224/article/details/93638985
https://www.cnblogs.com/dayue/p/9522467.html
CentOS下配置redis允许远程连接 - weixin_33948416的博客
https://blog.csdn.net/weixin_33948416/article/details/86025826
重要提示：
